rangeslider.h File Reference

Slice AT.3 — two-thumb horizontal range slider widget. More...

#include <QWidget>

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Classes
class	openswmmvis::ui::RangeSliderWidget

Namespaces
namespace	openswmmvis
namespace	openswmmvis::ui

Detailed Description

Slice AT.3 — two-thumb horizontal range slider widget.

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Date

2026

License\n GPL-3.0-or-later

Qt ships QSlider (single thumb) but no built-in two-thumb range slider. RangeSliderWidget fills the gap with a minimal QWidget that paints a track, a highlighted selected range, and two draggable thumbs. Values are normalised to [0..1]; the host (ComparisonPlotDialog) maps that to a QDateTime time range and applies it to row 0's xAxis (the existing linked-X-axis sync propagates to other rows).

Interaction:

• Drag the lo thumb (left) → narrows the start of the range.
• Drag the hi thumb (right) → narrows the end.
• Drag inside the selected band → shift the whole range without changing its width (the "both thumbs together" gesture).

Constraint: lo ≤ hi is always preserved; thumbs can touch but cannot cross.